A Chance Constrained Model for a Two Units Series Critical System Suffering From Continuous Deterioration

In this paper wefocus on a continuously deteriorating two units seriesequipment which its failure can not be measured by cost criterion.for these types of systems avoiding failure during the actualoperation of the system is extremely important. in this paper wedetermine inspection periods and maintenance policy in such a waythat failure probability is limited to a pre-specified value and thenoptimum policy and inspection period are obtained to minimize longruncost per time unit. the inspection periods and maintenance policyare found in two phases. failure probability is limited to a prespecifiedvalue in the first phase, and in the second phase optimummaintenance thresholds and inspection periods are obtained in such away that minimize long-run expected.